讲座题目：物理学系列学术报告：How to harvest Heat Energy? From Phononic Devices and Thermal Metamaterials
主讲人： 李保文 教授
主持人：刘宗华 教授
开始时间：2013-11-01 10：00
讲座地址：闵行校区物理楼226报告厅
报告人简介：
李保文教授是新加坡国立大学终身教授。同济大学声子学与热能科学中心主任。他是世界著名的微纳米尺度热传导专家和非线性物理学家。他因发明热二极管、热三极管、热逻辑门、热存储器和声子计算机的理论而闻名。他是2005年度新加坡国家科学奖获得者和2005 海外华人物理学会亚洲成就奖获得者。在过去五年里，李教授受国际物理学界和工程学界广泛邀请作全体大会报告、特邀报告，和邀请报告多达150多次。
李保文教授在Review Modern Physics, Nature-Material, Phys. Rev. Lett, Nano Letter， Nano Today等世界顶尖杂志上发表了224篇论文，其中包括27篇PRL。论文被引用4,700多次。H-因子为38。
报告内容简介：
Approximately 90% of the world’s power is generated by heat engines that use fossil fuel combustion as heat source and typically operate at 30–40% efficiency. This means that roughly 15 terawatts of heat is lost to the environment. Moreover, only 1/3 of energy from petrol combustion of auto engine is used to drive vehicle. How to harvest and manipulate heat is not only a technical problem but also a social, economic and political problem.
In this talk I will present several ways of harvesting heat energy through phononic thermal devices such as thermal diode, thermal transistor etc [1], and devices from thermal metamaterials such as thermal cloak, thermal collector and so on.